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Subject: Re: [PATCH 0/4] Finer granularity and task/cgroup irq time
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From: Peter Zijlstra <peterz@infradead.org>
To: Ingo Molnar <mingo@elte.hu>
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Date: Tue, 24 Aug 2010 10:49:06 +0200
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On Tue, 2010-08-24 at 10:14 +0200, Ingo Molnar wrote:
> Right, andthis connects to something Frederic sent a few RFC patches for 
> some time ago: finegrained irq/softirq perf stat support. If we do 
> something in this area we need a facility that enables both types of 
> statistics gathering. 

That facility is called irq_enter() and irq_exit() etc..